Jsiachihe eob



nnrrnn srarns rafrnna ernten.

WM. S. GEORGE, OF BALTIMORE, MARYLAND.

MACHINE FOR RIVING AND DRESSING SI-IINGLES.

Specification of Letters Patent No. 2,109, dated May 29, 1841.

T0 all 'whom t may concern:

Be it known that I, VVILLIAM S. Geenen, of the cit-y of Baltimore, inthe State of Maryland, have invented an Improved Machine for Riving andDressing Shingles; and I do hereby declare that the following is a fulland exact description thereof.

The timber from which the shingles are to be made by my machine is to becut of the proper length, and rived out so as to constitute square boltsof such size as shall adapt them to the width of the shingles to beformed from them; these bolts are to be placed in a fra-me prepared toreceive them; a piece of the proper thick* ness for a shingle is thenrived o by means of a reciprocating knife, which piece falls upon atable below the riving knife, whence it is driven forward between twodressing knives, which, as it passes between them, are made to approachtoward each other in such manner as to give a regular taper to theshingle, the edges being jointed at the same time, by jointing ironsduly fixed for that purpose.

In the accompanying drawing, Figure l, is a side elevation of mymachine; Fig. 2, is a top view of it; Fig. 3, a longitudinal andvertical section through the middle of it; Fig. 4t, a top View with theriving apparatus removed; Fig. 5, an end view, and Fig. 6, arepresentation of the whole machine in isometrical perspective.

In each of these figures, where the same parts are represented, they aredesignated by the same letters of reference.

The main frame of the machine is marked a, a, a, and may be about 8 feetlong, 2 feet wide, and 3 feet high; and upon this is placed a secondframe, l), b, which stands `upon legs about 6 inches high, and is firmlyattached to the frame a, a; the bolts are to be placed within the frameb, the blocks '0, o, embracing their ends so as to keep them steady;said blocks being adjustable, and conned in place by wedges, as shown inthe drawing. Between the top of the main frame a, a, and that part ofthe frame b, b, which holds the bolt, there is a sliding frame c, c,guided in grooves in the legs of the frame b, l); and this sliding framecarries the knife by which the shingles are t-o be rived; the length ofthis frame between the end pieces must be fully equal to that of twoshingles, and its width between the side pieces such as to admit thewidest shingle. 'lwo horizontal plates, or panels, e, z, which may bemade of sheet-iron, are contained in this frame, and meet nearlytogether at the middle thereof; the panel e', is placed the thickness ofa shingle above the panel e, and the riving knife CZ, is aliiXed to thefront edge of the panel e. The sliding frame c, c, is carried back andforth by means of a crank, or other device calculated to give areciprocating motion, operating on the end e, of a slide c, e; thisslide and the sliding frame c, c, are connected together by a pin, orbolt, rc, passing vertically through them; the end e, of the slide e, e,is made thin, its oflice being to push the rived shingle forward betweenthe dressing knives. 1When the bolt is in place in t-he frame l), andthe frame c, c, is carried forward so as to bring the panel e, under thebolt, said bolt will descend and rest upon the panel; and when sosituated, and the frame c, c, is forced back, a shingle will beseparated from the bolt by the riving knife d, and will fall down uponthe part a, a', Fig. 4, of the face of the lower frame a, a, and betweenthe fences, or guides, u, u, situated on said frame, and made adjustableto the width of the shingle.

To facilitate the action of the riving knife, and to insure square andclean edges to the rived shingle, I place two circular cutters of platesteel w, w, Fig. 3, (and shown by dotted lines in Fig. 2), so that theyshall revolve on centers on the frame b, l), in advance of the knife d,and on the same plane, so that their cutting edges shall cut into eachside of the bolt, on the line where it is to be rived. The rived shingleis now ready to be carried forward between the dressing knives f, f,which are seen in section in Fig. 3. rlhese knives are placed at suchdistance apart as is equal to the intended thickness of the butt end ofthe shingle. rlhe two knives j', f, are sustained at their ends by beingattached to two vertical sliding frames; and by the descent of one ofthese, and the ascent of the other, the knives are made regularly toapproach each other as the shingle passes between them.

o, is a part of the frame to which the upper knife is attached, and g,that to which the lower is attached; n, is a lever for raising andlowering these frames; this lever vibrates on a fulcrum r, Figs. l and3, and is connected to the sliding frames o, g, by two shackles r, 1',by which the knives are made to approach toward, or to recede from, eachother; the lever fn, is actuated by a rod m, attached to it and to thelever Z, the upper end of which lever passes through a mortise in theslide e, e, the effect of which will be apparent. When the end e, of theslide e, e, forces the shingle forward between the dressing knives, itis pressed down by a roller p, which revolves in a frame 79', a springs, bearing on the lower part of the frame, and drawing the roller downupon the shingle.

To joint the shingles, they are made toy pass between two jointingplanes as they leave the dressing irons; these planes are affixed toslides borne up by the springs, to give them a proper bearing on theedges of the shingle.

g, g, are the jointing planes which are aiiiXed to the slides 7L, t,working in dovetail grooves, in the top of the frame a, a;

' these slides are acted upon by the upper ing the planes g, g, torecede from each other.

Having thus fully described the manner in which I construct my machinefor riving and jointing shingles, and explained the operation thereof,what I claim therein as of my invention, and desire to secure by LettersPatent, is-

l. The manner in which I have combined and arranged the frame Z9, b, forholding the bolts, with the vibrating frame c, c, its panels and rivingknife, with their appendages, so as to rive shingles from the bolt by'an apparatus operating substantially as described.

2. I also claim the within described manner of constructing andcombining the dressing and jointing apparatus, the dressing knives beingmade to approach toward each other, and the jointing frames beingaii'iXed and operating in the manner, and for the purpose, above setforth.

WILLIAM S. GEORGE.

Witnesses:

JAMES BLAIR,

C. W. GRUN.

